import tkinter as tk
"""
Create a canvas with two shapes and bind events to movements
"""


root = tk.Tk()
root.geometry('800x600')
root.title('Canvas Demo - Oval')

canvas = tk.Canvas(root, width=600, height=400, bg='white')
canvas.pack(anchor=tk.CENTER, expand=True)
canvas.focus_set()


points = (
    (50, 150),
    (200, 300),
)
shape = canvas.create_oval(*points, fill='purple')
line = canvas.create_line(50,50,100,100, fill='blue')
def leftcircle(event):
    x=-10
    y=0
    canvas.move(shape,x,y)
def rightcircle(event):
    x=10
    y=0
    canvas.move(shape,x,y)

def leftline(event):
    x=-10
    y=0
    canvas.move(line,x,y)
def rightline(event):
    x=10
    y=0
    canvas.move(line,x,y)

canvas.bind("<Left>", leftcircle)
canvas.bind("<Right>", rightcircle)

canvas.bind("<Button-1>", leftline)
canvas.bind("<Key>", rightline)

root.mainloop()